Molecular Nanomagnets

Dante Gatteschi, Roberta Sessoli, and Jacques Villain

Description

Nanomagnetism is a rapidly expanding area of research which appears to be able to provide novel applications. Magnetic molecules are at the very bottom of the possible size of nanomagnets and they provide a unique opportunity to observe the coexistence of classical and quantum properties. The discovery in the early 90's that a cluster comprising twelve manganese ions shows hysteresis of molecular origin, and later proved evidence of quantum effects, opened a new research area which is still flourishing through the collaboration of chemists and physicists. This book is the first attempt to cover in detail the new area of molecular nanomagnetism, for which no other book is available. In fact research and review articles, and book chapters are the only tools available
for newcomers and the experts in the field. It is written by the chemists originators and by a theorist who has been one of the protagonists of the development of the field, and is explicitly addressed to an audience of chemists and physicists, aiming to use a language suitable for the two communities.

Molecular Nanomagnets

Dante Gatteschi, Roberta Sessoli, and Jacques Villain

Table of Contents

1. Introduction2. Magnetic Interactions in Molecular Systems3. Observation of Microscopic Magnetism4. Single Molecular Magnets5. Thermally Activated Magnetic Relaxation6. Magnetic Tunnelling of an Isolated Spin7. Introduction to Path Integrals8. Tunnelling in a Time-Dependent Magnetic Field at Low Temperature9. Interaction of a Spin with the External World at Low Temperature10. Tunnelling between Excited States11. Coherence and Decoherence12. Disorder and Magnetic Tunnelling13. More Experiments on Single Molecule Magnets14. Other Magnetic Molecules15. Emerging Trends in Molecular NanomagnetismA. Systems of Units, Physical Contants and Basic Mathematical ToolsB. The Magnetic
FieldC. How Irreversibility Comes InD. Basic Properties of the Master EquationE. Derivation of the Arrhenius LawF. Phonons and How to Use ThemG. High Order Perturbation TheoryH. Proof of the Landau-Zener-Stuckelberg FormulaI. Tunnelling Between Hyperfine StatesJ. Specific HeatK. master Equation for the Density Matrix